星期五

(a)  

3月

(a)  

6月

(a)  

[in / on] Sunday

(write the answer only)

(a)  

[in / on] the summer

(write the answer only)

(a)  

[in / on] Wednesday

(write the answer only)

(a)  

[in / on] January

(write the answer only)

(a)  

[in / on] December

(write the answer only)

(a)  

[in / on] in winter

(write the answer only)

(a)